Transmission Error Between Main And Sub Remote Controllers - Daikin RXSQ24TAVJU Service Manual

Troubleshooting by Error Code
4.53 Transmission Error between Main and Sub Remote
Controllers
U8
Error Code
Applicable All indoor units
Models
Method of Error In case of controlling with 2 remote controllers, check the system using microcomputer if signal
Detection transmission between indoor unit and remote controller (main and sub) is normal.
Error Decision
Normal transmission does not continue for specified period.
Conditions
Supposed
Causes
Troubleshooting
Refer to page 29 for Main/Sub setting.
229
Transmission error between main and sub remote controller
Connection between sub remote controllers
Defective remote controller PCB
Be sure to turn off the power switch before connecting or disconnecting
Caution connectors, or parts may be damaged.
Using 2 remote
controllers.
YES
Main/Sub
setting of both remote
controllers is set to
Sub.
YES
Main/Sub setting of
NO
the remote controller is
set to Main.
YES
NO
SiUS331708EA
NO
Set Main/Sub setting to
Main; turn power supply
OFF once and then restart.
Turn the power OFF and
then restart. If an error
occurs, replace the remote
controller PCB.
Set Main/Sub setting of one
of the remote controllers to
Main; turn power supply
OFF once and then restart.
Service Diagnosis